project name
Guangxi Jinchuan Smeltery Copper Matte Vertical Mill System Steam Heating instead of Natural Gas Hot-blast Stove Heating Energy Saving Project

Project owner
Guangxi Jinchuan Nonferrous Metals Co., Ltd.

Project implementation company
Yunnan M&W Energy Saving Technology& Science Co., Ltd.

Project content
The Yunnan branch of M&W group has been prepared for five months and implemented the first domestic innovative thermal energy joint energy-saving transformation project in the 400,000-ton copper smelting plant of Jinchuan Company, a domestic benchmark large-scale smelting enterprise-copper matte vertical mill system steam heating instead of natural gas hot blast stove heating Energy-saving technological transformation, the three-month operation assessment will end on November 20, 2020, and the revenue from invoicing will be realized. The comprehensive utilization of waste heat from landscape energy conservation project won the first prize of Jinchuan Group's 2020 Technological Specific content of energy-saving renovation
This project makes full use of the surplus and vented waste heat saturated steam heat energy of Guangxi Jinchuan Nonferrous Metals Co., Ltd. to replace the natural gas hot blast stove to heat the circulating air of the copper-sulfur vertical mill system. In the process of transformation, the structure of the circulating air duct of the copper matte vertical mill system was adjusted, and a high-efficiency finned air heating system was added, supporting drainage system, flashing system, closed condensate recovery device, automatic control system, etc., through air The heating system exchanges heat with the circulating air, and the automatic control system adjusts the temperature of the circulating air, which completely replaces the natural gas hot blast stove to heat the circulating air and produces good energy-saving benefits.

Project annual energy saving and annual energy saving benefits
The annual saving of natural gas is more than 3 million m³, and the annual production cost is reduced by more than 7 million yuan. At the same time, the waste steam caused by the surplus is converted into operating income.